Sukumaran was very concerned to ensure it was arranged before his execution.

"He encourages us that even (though) we are in this prison we can still learn more and be a good example to others," she says.

Prisoner I Wayan Sudiasa writes about his life-changing experience in Sukumaran's art classes.

"I am amazed at Myuran. I am proud of Myuran," he writes.

"He is a prisoner who was sentenced to death by a judge, who became a coach, teacher and painting guide in Kerobokan.

"Try to find Indonesians like Myuran."

Mr Joko is the only person who can spare the men from execution, but under political pressure to look decisive, he is enacting a policy of no mercy to death row drug offenders.

EXCERPTS OF LETTERS FROM INSIDE:

- Andre Wijaya: "I am a living witness, for 4.5 years with these two death row inmates. I assure you the two inmates have repented ... it can be verified directly with every resident of Kerobokan jail."

- Stefanus Mehang: "I know Andrew Chan and Myuran Sukumaran. They are dignified, modest and extraordinary personalities. I beg deeply for forgiveness for them both."